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(No Model.)

G. P. CARD.

I WAGON BRAKE; N0. 322,788.- v Patented July 21, 1885.

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N. PETERS Pnowmho n mr. wmhin mn, DJ).

A UNITED. STATES PATENT OFF CE.

GEORGE P. CARD, OF OLEAN, NEW YORK, ASSIGNOR OF ONE-FOURTH TO CARLTON B.PARKER, OF SAME PLACE.

WAGON-BRAKE.

SPECIFICATION forming part of Letters Patent No. 322,788, dated July 21,1885.

Application filed April 30, 1895. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE P. OARD,a citizen of the United States,residing at Olean, in the county of Oattaraugus and State of New York,have invented certain new and useful Improvements in \Vagon-Brakes, ofwhich the following is aspecification,reference beinghad therein to theaccompanying drawings.

Figure 1 is a top view of the front part of my improved wagonrunning-gear, showing by the aid of full and dotted lines the brakesin'two positions. Fig. 2 is a detail in longitudinal section,takenvertically through Fig. 1 in the plane indicated by dotted lines 0000. Fig. 3 is a perspective detail of one of the brake-shoes and aportion of one of the wheels.

My invention relates to automatic wagonbrakes which are so 'constructedthat the weight of the wagon and the load therein when descending a hillwill cause the brake-shoes to bear against the peripheries of the wheelsand hold back the wagon. My improvement on this class of automaticwagon-brakes consists, mainly, in combining with a draft pole or tonguewhich is endwise movable in the hounds of compound levers having theirfulcra on the hounds and connected by springrods to alongitudinally-movable transverse shaft bearing on its ends pivotedbrake-shoes, constructed and adapted for use as will be fully understoodfrom the following description when taken in connection with the annexeddrawings.

I have represented in the annexed drawings the front portion of therunning-gear of a heavy-draft wagon. A A. are the wheels of this part;B, the axle thereof, and C the bolster. Between the bolster the hounds DD are secured in the usual well-known manner.

Between the front parallel edges of the contracted ends of the hounds DD is pivoted the draft tongue or pole E by means of a horizontaltransverse bolt, F. This bolt is rigidly secured at its ends to thehounds, but passes through the slots E in the ends of the pole, so thatthe said pole will have backward or forward motion to the extent of thesaid slot, as occasion requires. In rear of this bolt, and

in close proximity thereto, are two levers, G G,which have their fulcraat a a on the hounds. The ends of the longest arms of these levers -thedrawings.

female re-enforced ends 0 c of a horizontal transverse brake-bar, J.This shaft is preferably square in cross-section, and it passes throughstirrup-loops d d, rigidly fixed to the lower sides of the hounds,posterior to the axle B. These stirrups d d are oblong l0ngitudinallyfor the purpose of allowing the brake-bar J to be moved bodily forwardand backward.

On the extremities of the brake-bar ferrules c c journals 0 are formed,on which are eccen trically pivoted the brake-shoes K K, whereby theyare free to oscillate, and will on this account act most effectively,but swing clear when not thrust against the wheel. shoes are constructedwith rounded ends 6 e and flaring curved edges 6 e, which are preferablyshod with metal strips 6, as shown in It will be observed that theseshoes are generally triangular in shape, and are hung on the brakebar bytheir upper ends, so as to secure the greatest efficiency 1n operating.The journals 0 are removable and adjustable-that is to say, I desire tomake them screw-threaded with slotted or nut heads on their outer ends,by which means the shoes can be removed and replaced at pleasure.

It will be seen that the brake-shoes K K are so constructed and appliedon the outer ends of the brake-bar that they are free to vibrate forwardand backward, so that when the wagon is backing these shoes will rollfreely up out of the way of the wheels, leaving them free to turn.

It will also be observed from the foregoing that when the draft-tongueis in the position indicated in full lines, Fig. 1, the brake-shoesare'free from the wheels A A, and that when the draft-tongue is in theposition indicated in dotted lines, the same figures, the brakeshoeswill closely hug the wheels, and by their frictionagainst theperipheries thereof retard the speed of the wagon. I

I am aware that it is not new to control the These brake by means of thepole or tongue of the vehicle; also,- that pivoted brake-shoes are notnew.

their inner ends passing through the staple Z) and pivoted at theirouter ends to the springrods H H, the rods H H, brake-bar J, and Havingdescribed my invention, I claimbrakeshoes K K, pivoted thereto, as setforth. 5 In a wagon-brake, the axle B, bolster O, In testimony whereofIaffix mysignaturein 15 hounds D D, provided with the stirrup's d d,presence of two witnesses. and having the transverse bolt F rigidly se-GEORGE P. CARD. cured thereto, in combination with the pole E,\Vitnesses: 7

having the slot E and staple b, the brake-le- CHARLES OERTERHOUDT,

1o vers G G, pivoted to the hounds D D, with HENRY O. MoYEN.

